Chapter 5 The Working Cell Energy • Capacity to do work • Types of energy – – – – Kinetic energy – energy of motion Potential energy – stored energy Thermal energy - heat Chemical energy - potential energy of molecules • Thermodynamics – Study of energy Oxidation-Reduction Reactions • When an atom or molecule loses an electron‚ it is said to be oxidized – process called oxidation • When an atom or molecule gains an electron‚ it is said to be reduced – process called reduction
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Summary for Quiz Monday‚ May 30‚ 2005 12:13 AM Title Identification of Some Macromolecules Gist of Experiment • Use different tests to check for the existence of macromolecules in various substances o Iodine test checks for starch and/or glycogen o Benedict’s test checks for reducing sugars o Biuret test checks for protein Notes on Underlying Theory Introduction • The most abundant elements in living material are: o Carbon
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1. Identification of Some Macromolecules 1) What are 2 types of treatment controls‚ and explain each. Positive control: gives positive result if experimental conditions were followed correctly Negative control: gives negative result if experimental conditions were followed correctly 2) What are the most abundant elements in living material? Carbon‚ Hydrogen‚ Oxygen‚ Nitrogen‚ Sulfur and Phosphorus 3) What are the 4 major biological macromolecules? Carbohydrates (monosaccharides &
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Abstract Photosynthesis is a food making process for algae and plants. The photosynthesis process rate varies from different wavelengths and intensities of light. This lab will evaluate the optimal wavelengths and degrees of intensity during photosynthesis when chloroplast is exposed to light. The mixtures of DCPIP with water‚ PO4 buffer‚ and chloroplast will be prepared in a number of cuvettes. The cuvettes were tested individually at different wavelengths and intensities to find the optimal rate
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Process of Photosynthesis Shawanda D. Robinson BIO 204 Plant Physiology Monday‚ January 26‚ 2015 Brandy McFadden Process of Photosynthesis We all learned in elementary school that the suns provide nutrients and components that help plans grow. “As the name implies‚ photosynthesis is a process that uses light energy to synthesize something.” (Mauseth‚ 2014) That process is called photosynthesis. Photosynthesis is the process where plants use light energy from the sun. If we
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Sample Paper chemistry Class 11 1. 1.7 g of AgNO3 is dissolved in 100 g of water. 0.585g of NaCl dissolved in 100g of water is added to it and chemical reaction occurs. 1.435g of AgCl and 0.85 g of NaNO3 are formed. Justify that the data obey the law of conservation of mass 2. (a) When 4.2g of sodium bicarbonate is added to a solution of acetic acid weighing 10g‚ it is observed that 2.2g of CO2 is released into atmosphere. The residue is found to weigh 12g. Show that these observations
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Comparative growth studies of Prokaryotic & Eukaryotic algae grown in waste water of Musi River Major Project report submitted in partial fulfillment of the Academic Requirement for the award of the Degree of BACHELOR OF TECHNOLOGY IN BIOTECHNOLOGY Submitted to Jawaharlal Nehru Technological University Hyderabad Kukatpally‚ Hyderabad - 500 085‚ Andhra Pradesh‚ India By Arshiya Nazneen Neha (09311A2374) Alisary Shailaja (09311A2328) S. Veena Spandana (09311A2301)
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With the worlds population growing constantly quicker and more reliable ways to produce foods need to be made. Through hydroponics more plants and crops can be created in a shorter amount of time. "Hydroponics is an excellent method of conducting research with controlled conditions of nutrient availability." The problem is that if the exact amount of minerals are not used the produce may have negative side effects or unwanted results. Through the research of hydroponics the less fortunate can
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in the chloroplasts‚ distinctively using chlorophyll‚ the green pigment implicated in photosynthesis. Photosynthesis mainly transpires in plant leaves. The two parts to photosynthesis are light and dark reactions. The light reaction comes about in the thylakoid membrane and then switches light energy to chemical energy. Each of these differently-colored pigments can attract a slightly different color of light and pass its energy to the central chlorophyll molecule to do photosynthesis. The energy
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Research Question: How does varying distance of light away from papaya leaf discs at 10cm‚ 15cm‚ 20cm‚ and 25cm affect time taken in seconds for all five discs to rise and float on the surface of the water? Hypothesis: “As the distance of light away from papaya leaf discs increases‚ the average time taken for the discs to resurface and float o the surface of the water increases.” Data Collection & Processing Raw Data Table: Time taken (minutes)
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